Engraver&#39;s clamp.



No. 890,063. PATENTED JUNE 9, 1908.

' c. M. JONES.

ENGRAVERS CLAMP. APPLIOATION FILED AUG. 24, 1907.

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a/za/zmimwx UNITED STATES PATENT @FFICE.

CHARLES MYRON JONES, OF NORTH YAKIMA, WASHINGTON.

' ENGRAVERS CLAMP.

Application filed August 24,

To all whom it may concern:

Be it known that I, CHAnLEs MYRON JONEs, a citizen of the United States,residing at North Yakima, in the county of Yakima and State ofWashington, have invented a new and useful Engravers Clamp, of which thefollowing is a specification.

This invention relates to engravers clamps.

The object of the invention is to provide a clamp of this characterwhich shall be pel euliarly adapted for use in firmly holding, withoutdanger of distortion or injury, irl regular shaped articles such as culllinks, brooches, pins, thimbles and the like, while j being engraved.

With the above and other objects in view l as will appear as the natureof the invention is better understood the same consists in the novelconstruction and combination of parts of an engravers clamp as will behereinafter fully described and claimed.

In the accompanying drawing forming a part of this specification and inwhich like characters of reference indicate correspond ing parts,-

Figure 1 is a view in side elevation, partly in section, of a clampconstructed in accordance with the present invention. F 2 is a top planview. Figs. 3 and 4 are views in side elevation displaying theconstruction of the pedestals for holding a thimble to be engraved.

Referring to the drawings, 1 designates the base of an engravers clampof the ordinary construction and which as usual rests upon a cushion 2.Mounted upon the base are the usual jaws 3 that are caused by a suitablescrew, not shown, to approach or recede from each other according to thecharacter of the work to be done.

Supported upon the jaws are pedestals 4 and 5, respectively, each ofwhich carries two pins 6 that are adapted to engage orifices 7 providedin the jaw for the purpose. Each pedestal is provided with a verticalorifice 8, the two orifices being furnished for the reception of studsor pins 9 carried by the supplemental work holding 10 that constituteone of the essential features of this invention.

As will be observed by reference to Fig. 2, the perimeters of the jawsare of irregular shapethat is to say, they have curviline. r j andangular recesses 11 and 12, respectively, and in addition theperipheries are recessed l Specification of Letters Patent.

- or under Patented June 9, 1908.

1907. Serial No. 390,065.

out at 13 to provide seats to engage with the edges of the article beingengraved.

The jaws are provided with a plurality of 011- fices 14, in thisinstance six in number, that are arranged concentric with the pins 9,and are adapted to engage with studs 15 projecting upward from thepedestals, whereby the jaws will be held firmly in adjusted position.The inner face of the pedestal 5 is provided with a circular recess 16that intersects the upper face of the pedestal and is designed toreceive the base of a thimble, and the inner face of the pedestal 4 isprovided with a dished recess 17 to receive the end of the thimble. Bythe provision of the recess 16 an article, such as a thimble, may begrasped with its margin exposed, thus to facilitate engraving. Of courseit will be understood that when a thimble is being engraved the two jaws10 will be removed.

-From the foregoing description it will be seen that provision is madefor securely retaining in position articles of any shape that it may bedesired to be engraved whether they be concave, convex. or fiat orwhether their perimeters be curved or angular. Furthermore, that by theprovision of the recesses 1.6 and 17 in the opposed faces of the twopedestals a thoroughly efficient means is provided for holding a thimblein position while any portion thereof is being engraved.

What is claimed is In an engravers clamp, a pair of oppositely disposedblocks, pedestals mounted upon said blocks, said pedestals beingprovided with an elongated recess cylindrical in cross section extendingfrom the top thereof downward, a pin on the upper face of each of saidpedestals, work holding jaws each provided with an elongated studarranged to lie in said recess and further provided with a series ofopenings concentric to said stud adapted to receive the pin on saidpedestal, said stud being of greater length than said pin, whereby thejaws may be lifted from the pin and rotated without removing them fromthe pedestals.

In testimony that I claim the foregoing as my own, I have hereto a'HiXedmy signature in the presence of two witnesses.

CHARLES MYRON JONES.

WVitnesses:

LEO A. SLADE, A. D. PADDIsON.

